GENRE: MG SECRET
The trouble started with a stone. Not the pebbles that shot up from Tristan Matterhorn’s giant footsteps and lodged in his sneakers. Something bigger. He pounded over the hard-packed playground toward the street. Why’d you have to bring a rock to school, Clara?
He knew the answer: she couldn’t help it. She was only the latest in a long line of mineral-obsessed Matterhorns. Chunks of quartz, granite, and lava lined the windowsills and the potted plants in their house. Even the back of the toilet. They perched on every surface like mute gray toads.
Needles of rain pricked Tristan’s eyes. He veered across a gravel parking strip. The last school bus roared past, a cloud of exhaust lingering in its wake. Despite the cool spring shower, he began to sweat.
“Heard your big sister cracked a window during one of her tantrums,” Oliver Diamond had whispered in Social Studies, the